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A little help/advice needed (on tyres)

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sleepmonster:
hi their people.
we have recently put sum MT tyres (Bronco diamondbacks) on the Disco (200tdi) and fuel consumption has become really bad when driving on roads. expected it to be not so good, but not as bad as it is, £50 lasts about 120 miles!!
so i was wondering is it these specific tyres that are making it so bad on fuel or are all MT tyres bad on fuel when on the roads? or could it be as simple that were running too low pressure in the tyres? if so what psi shold we be running?

many thanks
ste

mass199:
What mpg was it doing before? What size tyres are they?  Try 28 psi front 35 rear for road use.

sleepmonster:
they are 205 16's. it used to do roughly 30mpg ish on previous tyres.
will try those presures thanks.
ste

boss:
there is more rolling resistance with mt tyres

one of the good ideas that steve(david p) has had is to put the mud tyres on steel wheels and have at/road tyres on his alloys. just swap them over when you go out.

crazymac:
Thats about ten gallons of fuel? so works out around 12 miles to the gallon :shock: No way the tyres make THAT much difference, a drop to 24 or 25 yes, but not 12!!

I would look to other problems like a fuel leak, engine condition etc

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